EP 0095959 B1 19860430 - FREQUENCY HOPPING RADIOCOMMUNICATION SYSTEM
Title (en)
FREQUENCY HOPPING RADIOCOMMUNICATION SYSTEM
Publication
Application
Priority
FR 8209258 A 19820527
Abstract (en)
[origin: US4554668A] A radio communications system comprising at least one master station and a plurality of slave stations in two-way frequency-hopping communication therewith. For telephony, speech is digitally encoded. Digital data is transmitted in packets using successive bursts at different frequencies separated by intervals of silence. Each slave station has its own frequency-hopping pattern independent of the patterns of the other slave stations but sharing a common pool of available frequencies. The master stations are capable of generating any of the slave station patterns instantly. The master stations broadcast network time information for synchronization purposes, and the slave station patterns are determined by a combination of a slave station identification number and network time.
IPC 1-7
IPC 8 full level
H04B 7/24 (2006.01); H04B 7/26 (2006.01); H04J 13/00 (2011.01); H04W 16/02 (2009.01)
CPC (source: EP US)
H04B 1/7143 (2013.01 - EP US); H04B 7/2634 (2013.01 - EP US)
Designated contracting state (EPC)
DE GB IT
DOCDB simple family (publication)
EP 0095959 A1 19831207; EP 0095959 B1 19860430; CA 1214215 A 19861118; DE 3363259 D1 19860605; DK 233783 A 19831128; DK 233783 D0 19830525; FR 2527871 A1 19831202; FR 2527871 B1 19860411; GR 77474 B 19840924; JP S58219845 A 19831221; US 4554668 A 19851119
DOCDB simple family (application)
EP 83400986 A 19830517; CA 428751 A 19830524; DE 3363259 T 19830517; DK 233783 A 19830525; FR 8209258 A 19820527; GR 830171481 A 19830527; JP 9389283 A 19830527; US 49656483 A 19830520